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How to Set Up RAID 1 Between 2+ SATA Drives in Windows Disk Management
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FAQ Section:
Q1 What is my Current Backup Solution?
A1: On my NAS, I currently have it configured to run daily incremental backups, meaning it will only backup data that has been changed since the last successful backup, it holds all data revisions for 30 days, then deletes the oldest. If I deleted a file 26 days ago, I can go through the backup revisions and restore the file from the backup that occurred 26 days ago. My backups are stored on a different HDD than my data so if a drive fails, I will still have access to either my data or my 30 days of backup revisions, which I can then use to restore from. Currently, I do not use RAID, as such I don’t have redundancy for my data, but I do have a backup. I'm thinking of overhauling my backup systems to incorporate a RAID 5 array (for redundancy) and an incremental backup system (for backup) to an external location - this will then give me both redundancy and backup for my data.
Q2: Is Windows RAID better than BIOS RAID?
A2: No, Windows RAID it’s configured within Windows (internal to the OS installation), if anything were to happen to the windows installation, the RAID array would need to be rebuilt, and you may lose data. If you wanted to reinstall windows, you would need to back up the data in the RAID, reinstall windows, reconfigure the RAID then transfer the data back
A2: If you set up the RAID in the BIOS (external to the OS installation), when you install Windows (or other OS) onto that RAID array it will see the RAID array as one big drive. Windows won’t even know it’s installed on a RAID array, meaning, no matter what happened to your windows installation, the RAID won’t be jeopardised. You can reinstall windows as many times as you want (but make sure to always back up your data before reinstalling)
Q3: How will I know when a drive fails in the RAID array (degrades)?
A3: I cannot confirm this as it's never happened to me, but I would expect Windows to alert of a drive failure through Windows notifications. To rebuild the array, you would be expected to power down the system, replace the drive with a working one of equal capacity, power on the system and rebuild the array from within windows (I'm not sure how this is done, as Windows keeps changing the way disks are managed)
Notes:
- If HDD/SSD is equal to or smaller than 2TB, then select "MBR" *
- If HDD/SSD is larger than 2TB, then select "GPT"
- *If your HDD/SSD is smaller 2TB but you want more than 4 partitions, select "GPT", because MBR only supports up to 4 partitions.
Learning from my recent HDD corruption which meant I needed to send off to get it professionally recovered, I have bought 2x Western Digital Red drives that I am going to set up in RAID 1.
I chose WD Red drives as they are manufactured for use in NAS storage systems which are usually left on 24/7, thus these drives “should” be more durable when compared to the lines that WD manufacture.
RAID 1 is a RAID configuration that mirrors two or more drives, meaning the same data will be written and stored on each of the drives configured in RAID 1 configuration. This means that if one drive fails, you still have the other drive(s) which contain the same data, so you haven’t lost your data, just the failed storage drive which you can replace.
Q1 What is my Current Backup Solution?
A1: On my NAS, I currently have it configured to run daily incremental backups, meaning it will only backup data that has been changed since the last successful backup, it holds all data revisions for 30 days, then deletes the oldest. If I deleted a file 26 days ago, I can go through the backup revisions and restore the file from the backup that occurred 26 days ago. My backups are stored on a different HDD than my data so if a drive fails, I will still have access to either my data or my 30 days of backup revisions, which I can then use to restore from. Currently, I do not use RAID, as such I don’t have redundancy for my data, but I do have a backup. I'm thinking of overhauling my backup systems to incorporate a RAID 5 array (for redundancy) and an incremental backup system (for backup) to an external location - this will then give me both redundancy and backup for my data.
Q2: Is Windows RAID better than BIOS RAID?
A2: No, Windows RAID it’s configured within Windows (internal to the OS installation), if anything were to happen to the windows installation, the RAID array would need to be rebuilt, and you may lose data. If you wanted to reinstall windows, you would need to back up the data in the RAID, reinstall windows, reconfigure the RAID then transfer the data back
A2: If you set up the RAID in the BIOS (external to the OS installation), when you install Windows (or other OS) onto that RAID array it will see the RAID array as one big drive. Windows won’t even know it’s installed on a RAID array, meaning, no matter what happened to your windows installation, the RAID won’t be jeopardised. You can reinstall windows as many times as you want (but make sure to always back up your data before reinstalling)
Q3: How will I know when a drive fails in the RAID array (degrades)?
A3: I cannot confirm this as it's never happened to me, but I would expect Windows to alert of a drive failure through Windows notifications. To rebuild the array, you would be expected to power down the system, replace the drive with a working one of equal capacity, power on the system and rebuild the array from within windows (I'm not sure how this is done, as Windows keeps changing the way disks are managed)
Notes:
- If HDD/SSD is equal to or smaller than 2TB, then select "MBR" *
- If HDD/SSD is larger than 2TB, then select "GPT"
- *If your HDD/SSD is smaller 2TB but you want more than 4 partitions, select "GPT", because MBR only supports up to 4 partitions.
Learning from my recent HDD corruption which meant I needed to send off to get it professionally recovered, I have bought 2x Western Digital Red drives that I am going to set up in RAID 1.
I chose WD Red drives as they are manufactured for use in NAS storage systems which are usually left on 24/7, thus these drives “should” be more durable when compared to the lines that WD manufacture.
RAID 1 is a RAID configuration that mirrors two or more drives, meaning the same data will be written and stored on each of the drives configured in RAID 1 configuration. This means that if one drive fails, you still have the other drive(s) which contain the same data, so you haven’t lost your data, just the failed storage drive which you can replace.
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